<div id="available-settings" class="general-style">
	<h1 id="url-filtering">
		URL Query Filtering
	</h1>

	<p>
		By default, each page URL is treated as a separate page with separate
		comments, even if two different URLs show the same content. However, you
		can control how HashOver treats the page URL by using either or both of
		the methods below.
	</p>

	<h2 id="canonical-url">
		Using a Canonical URL
	</h2>

	<p>
		By default, HashOver will use a canonical URL when one is present. You
		can add one by placing a
		<a href="http://en.wikipedia.org/wiki/Canonical_link_element">Canonical Link Element</a>
		in the <code>&lt;head&gt;</code> element of your website, if you do this properly
		HashOver will show the same comments for URLs that show the same content.
	</p>

	<p>
		Here is an example of a Canonical Link Element...
	</p>

	<div class="code block">
		&lt;link rel="canonical" href="https://example.com/page.html" /&gt;
	</div>

	<p>
		A canonical URL is designed to be the same for all URLs that show the
		same content, normally this is done by removing unimportant queries from
		the normal URL before using it as the canonical URL. This is done on the
		server-side, by using PHP for example, so by the time HashOver sees the page
		the URL in the Canonical Link Element should have already been processed.
	</p>

	<h2 id="ignored-queries">
		Ignoring URL Queries
	</h2>

	<p>
		You can make HashOver ignore unwanted URL queries by either adding them
		on the admin "URL Filtering" page, or by adding them to the
		<code>/hashover/config/ignored-queries.json</code> file. Adding a query
		name without a value will cause that query to be ignored no matter what
		its value is. Adding a query name with a value (ie. name=value) will
		cause only that specific query with that specific value to be ignored.
	</p>

	<p>
		Ignoring specific URL queries allows URLs that are otherwise the same to
		get treated as the same page by HashOver. For example, a website that has
		content in multiple languages might have a URL query named "lang" that
		decides what language to use. By default, HashOver will treat URLs like
		<code>https://example.com/page.html?lang=en</code> and
		<code>https://example.com/page.html?lang=jp</code> as separate pages, but if
		you add the "lang" query to the <code>ignored-queries.json</code> file these
		URLs will be treated as being the same page and display the same comments.
	</p>

	<h1 id="controlling-hashover">
		Controlling the Behavior of HashOver
	</h1>

	<p>
		Assuming everything is setup properly, HashOver should "just work", it
		will automatically detect what page it is on and show comments for that page,
		it will automatically add the theme CSS to the page, among other things.
	</p>

	<p>
		However, this automatic setup is not useful for every situation, such as
		displaying multiple comment forms on a single page, displaying comments
		from a different page, or adjusting the language based on what language
		is set on your website.
	</p>

	<p>
		To do these things you need to use the loader script instead...
	</p>

	<div class="code block">
		&lt;script type="text/javascript" src="/hashover/loader.php"&gt;&lt;/script&gt;
	</div>

	<p>
		This script allows you to pass various information to HashOver before it
		appears on page. It allows you to specify where to display the comments,
		what page or thread to show comments for, and it even lets you override a
		limited number of settings.
	</p>

	<p>
		Unlike the <code>comments.php</code> script, the loader script does not
		display comments until you instantiate an instance. This allows you to
		dynamically load comments when an element is clicked or a certain element
		is scrolled into view for example, it also allows you to display the comments
		for a specific page when that page is loaded dynamically via JavaScript.
	</p>

	<p>
		You may instantiate an instance manually like this...
	</p>

	<div class="code block paragraph">
		&lt;script type="text/javascript"&gt;<br>
		&nbsp; &nbsp; var hashover = new HashOver ();<br>
		&lt;/script&gt;
	</div>

	<p>
		You may tell HashOver to place the comments in a specific element like
		this...
	</p>

	<div class="code block paragraph">
		&lt;script type="text/javascript"&gt;<br>
		&nbsp; &nbsp; var hashover = new HashOver ('comments');<br>
		&lt;/script&gt;
	</div>

	<p>
		You may load comments from a different page by passing the URL and title
		in the second parameter...
	</p>

	<div class="code block paragraph">
		&lt;script type="text/javascript"&gt;<br>
		&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
		&nbsp; &nbsp; &nbsp; &nbsp; url: 'https://example.com/super/cool/article.html',<br>
		&nbsp; &nbsp; &nbsp; &nbsp; title: 'Super Cool Article Title'<br>
		&nbsp; &nbsp; });<br>
		&lt;/script&gt;
	</div>

	<p>
		You may override various settings by passing them as an object in the
		second parameter...
	</p>

	<div class="code block">
		&lt;script type="text/javascript"&gt;<br>
		&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
		&nbsp; &nbsp; &nbsp; &nbsp; settings: {<br>
		&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; language: 'de_DE',<br>
		&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; formPosition: 'bottom',<br>
		&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; websiteField: 'off'<br>
		&nbsp; &nbsp; &nbsp; &nbsp; }<br>
		&nbsp; &nbsp; });<br>
		&lt;/script&gt;
	</div>

	<p>
		This example sets the interface language to German, sets the primary
		comment form position to below the posted comments, and disables the
		website field. The <code>settings</code> object's key names can be
		hyphenated or camelCase. Some settings cannot be adjusted from the
		frontend like this for security reasons, see the
		<a href="../settings/" title="Settings">Settings</a>
		page for more information about each setting.
	</p>

	<h2 id="object-syntax">
		HashOver Object Syntax
	</h2>

	<div class="code block">
		function HashOver ([id, options, instance])
	</div>

	<h2 id="parameters">
		<b>Parameters</b>
	</h2>

	<dl>
		<dt>
			<code>id</code>
		</dt>
		<dd>
			The ID of an element to add the comments to. If omitted, it defaults to
			<code>hashover</code> and is automatically suffixed with a dash and the
			instance number for every instance except the first. This parameter
			expects a <code>string</code> value.
		</dd>
		<dt>
			<code>options</code>
		</dt>
		<dd>
			<p>
				An object containing the following information.
			</p>
			<table width="100%" border="0" cellspacing="0" cellpadding="0">
				<thead>
					<tr>
						<th width="1%">
							Name
						</th>
						<th width="1%">
							Type
						</th>
						<th>
							Description
						</th>
					</tr>
				</thead>
				<tbody>
					<tr id="title">
						<td valign="top">
							<code>title</code>
						</td>
						<td valign="top">
							<code>string</code>
						</td>
						<td valign="top">
							<p>
								A page title. This title appears before the primary comment
								form. If omitted, the title of the page HashOver is being
								used on will be automatically detected and used instead.
								This title is collected as metadata for use in the various
								APIs that don't have direct access to the page they are
								showing comments for.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; title: 'Super Cool Article Title'<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
						</td>
					</tr>
					<tr id="url">
						<td valign="top">
							<code>url</code>
						</td>
						<td valign="top">
							<code>string</code>
						</td>
						<td valign="top">
							<p>
								A page URL. This URL is used to differentiate the comments
								on each page from each other. This option allows you to display
								comments from a different page by passing in a different URL.
								If omitted, the URL of the page HashOver is being used on
								will be automatically detected and used instead. This URL is
								collected as metadata for use in the various APIs that don't
								have direct access to the page they are showing comments for.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; url: 'https://example.com/super/cool/article.html'<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
						</td>
					</tr>
					<tr id="thread">
						<td valign="top">
							<code>thread</code>
						</td>
						<td valign="top">
							<code>string</code>
						</td>
						<td valign="top">
							<p>
								The internal name of a comment thread. This option decides the
								name of the thread's directory under <code>/hashover/comments/threads</code>,
								or <code>/hashover/comments/&lt;domain&gt;/threads</code> if
								support for multiple websites is enabled, or the value of the
								<code>thread</code> column when storing the comments in an SQL
								database. If omitted, the thread name will be automatically
								generated based on the page URL.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; thread: 'super-cool-article'<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
						</td>
					</tr>
					<tr id="website">
						<td valign="top">
							<code>website</code>
						</td>
						<td valign="top">
							<code>string</code>
						</td>
						<td valign="top">
							<p>
								A website domain name. This is used to differentiate between
								comment threads that may have the same name but are on
								different websites. This option decides the name of the
								website's directory under <code>/hashover/comments</code> or
								the value of the <code>website</code> column when storing
								the comments in an SQL database.
							</p>
							<p>
								This option is only used when support for multiple websites
								is enabled. If omitted, the domain name will be automatically
								extracted from the client's request to your server.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; website: 'example.com'<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
						</td>
					</tr>
					<tr id="canonical">
						<td valign="top">
							<code>canonical</code>
						</td>
						<td valign="top">
							<code>boolean</code>
						</td>
						<td valign="top">
							<p>
								Whether to pull the page URL from a
								<a href="http://en.wikipedia.org/wiki/Canonical_link_element" target="_blank">Canonical Link Element</a>
								in the <code>&lt;head&gt;</code> element rather than being automatically
								detected. If omitted, the Canonical Link Element is used.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; canonical: false<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
						</td>
					</tr>
					<tr id="settings">
						<td valign="top">
							<code>settings</code>
						</td>
						<td valign="top">
							<code>object</code>
						</td>
						<td valign="top">
							<p>
								An object of settings to override. The key names can be
								hyphenated or camelCase. Not all settings are supported. For
								a complete list of all available settings see the
								<a href="../settings/" title="Settings">Settings</a>
								page for more information. If omitted, the default settings
								or those set in the <code>/hashover/config/settings.json</code>
								file will be used instead.
							</p>
							<p>
								Here's an example...
							</p>
							<div class="code block">
								&lt;script type="text/javascript"&gt;<br>
								&nbsp; &nbsp; var hashover = new HashOver ('hashover', {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; settings: {<br>
								&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; language: 'de_DE',<br>
								&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; formPosition: 'bottom',<br>
								&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; websiteField: 'off'<br>
								&nbsp; &nbsp; &nbsp; &nbsp; }<br>
								&nbsp; &nbsp; });<br>
								&lt;/script&gt;
							</div>
							<p>
								This example sets the interface language to German, sets the
								primary comment form position to below the posted comments,
								and disables the website field.
							</p>
						</td>
					</tr>
				</tbody>
			</table>
		</dd>
		<dt>
			<code>instance</code>
		</dt>
		<dd>
			The instance number, which is used when there are multiple comment
			threads on a single page. If omitted, it defaults to <code>1</code> and
			automatically increases each time a new HashOver instance is
			instantiated. This parameter expects a <code>number</code> value.
		</dd>
	</dl>
</div>
